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@uitrit gianna gamut @fitta IMPROVEMENT IN TURNING AND PLANING T0018.

CHARLES W. BURDIC, OF NORWIGEL CON N ECTICUT. raam Patent No. 59,958, dated November Y27, 1866.

VSPECIFICATION- Y TO- ALL WHOM IT MAY OONGERN: t

Be it known that I, Cimnuns W. Beanie, of Norwich, in the county of New London, and State of Connec tient, have invented a new and useful Improvement in Turning or Planing Tool; and Ido hereby declare that the following is a; full, clear, andv exact description thereof, which will enable those skilled in the art to make and use thc same, reference being had to the accompanyingdrawings, formingpart of this specication, in which- Figurc 1 is a side view ot my improved tool, showing the cutter in place.

Figure 2 is a front view ofthe same, the cutter being removed.

Figure 3 is a detail sectional view of the same, taken through lthe line xix, iig. 2, and' showing the cutter in place. l.

Figure 4 is a detail sectional view of the saine, taken through the line y y, and showing a square cutter in place in the holder. t

Figure 5 is the same view as tig. 4, showing a diagonal cutter in place in the holder;

Similar letters of reference indicate correaponding parte.

My invention has for its object to furnish an improved tool for turning or planing ironA or steel, the holder' of which can receive and hold' cutters of various shapes, and-designed formriolieilses. `IAndit consists in' the combination of the holder, shoe, cutter, andset-screw with each other, when the said holder and vshoe are constructed and arranged substantially as herein described and for the purpose set forth.

A is the holder, upon the forward end of which are formed two arms; aI and a', by cutting a square notch into the said end, as shown in figs. 1 and 3. The a'rm a, is made shorter than the arm,.a, and theyare both mortiscd obliquely with u star-shaped or eight-angled mortise, as shown in the drawings; that is to say, the mortise consists of two concentric square mortises, having the same dimensions and the same axis, and arranged diagonally with -rcspect to each other, so that the mortise may receive a square tool, as shown in iig. 4, or a diagonal tool, as shown in iig. 5. Bis thc cutter, which, when diagonal, is placed in the morts'e iu the position shown in figs. 1, 3, and 5, and when square, -in `the position shown in iig. 4. C is the shoe, which is gie triangular block fitting into the triangular space between the cutter B, the arm al, Vand the body of the` holder A, as shown in figs. 1 and 3. The face of the shoe, C, that comes in contact with the cutter, B, is grooved with an angular groove, as showxrin dotted lines in iig. 1. When a diagonal cutter is used, the corner of said cutter enters the angular groove in the face of the shoe, C, as shown in iig. 1. But when a square cutter is used, its

dat side rests against the face of the said shoe on `each side of the said groove. D is ,a set-screw passing in through a screw-hole formed through the arm, al, of the holder, A, so that its end may rest against the side of tho shoe, C, forcing it forward and clamping the cutter, B, securely in whatever position it maybe placed.

I claim as new, and desire to secure by Lettera Patentf The combination of the holder A, shoe C, cutter B, and set-screw D, whenY the said holder and shoe are constructed and arranged substantially as herein described, and for the purposes set forth.

CHARLES W. 4BURDIG.

Witnesses:

Cminnns II. Bnowrm, SOLOMON Lucas. 

